PGA2505IDBR

Overview

The PGA2505IDBR is a digital-controlled microphone preamplifier manufactured by Texas Instruments. It operates within a supply voltage range of ±4.75 V to 5.25 V and features a single channel configuration housed in a 24-SSOP package. The device provides an adjustable gain range from 9 dB to 60 dB, with a total harmonic distortion plus noise (THD+N) of 0.0006%. It exhibits an input offset voltage (Vos) of 1 mV and supports differential inputs. The component functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Digital control interface for precise gain adjustment
• Low distortion audio performance suitable for high-fidelity applications
• Integrated differential input stage optimized for microphone signals

Applications

• Professional audio recording equipment
• Broadcasting studio microphone interfaces
• High-end consumer audio systems

Procurement Notes

Verify the specific suffix IDBR indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the design accommodates the required ±4.75 V to 5.25 V power supply rails. Validate thermal management requirements for the SSOP-24 package under maximum load conditions.

Selection Notes

Select this component for designs requiring digitally programmable gain in a compact surface-mount form factor. Compare against the PGA2500 series if a 28-pin package or different gain step resolution is preferred. Ensure the SPI-compatible control interface aligns with the system's microcontroller capabilities. Verify that the 24-SSOP footprint matches the PCB layout constraints.

Part Context

This part belongs to the SoundPlus™ family of audio integrated circuits from Texas Instruments. It serves as a specialized preamplifier solution for professional audio chains. The device complements other audio processing components like ADCs and sample rate converters within complete signal chain architectures.

Replacement Considerations

PGA2505IDB is the tube-packaged equivalent of this reel variant.